Subversion Repositories tpanel

/*

 * Copyright (C) 2020 to 2022 by Andreas Theofilu <andreas@theosys.at>

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation; either version 3 of the License, or

 * (at your option) any later version.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301  USA

 */

#include <QTextObject>

#include <QLabel>

#include <QImage>

#include <QWidget>

#include <QPropertyAnimation>

#ifdef QT5_LINUX

#include <QtMultimedia/QMediaPlayer>

#include <QtMultimediaWidgets/QVideoWidget>

#else

#include <QTextLayout>

#endif

#include "tobject.h"

#include "terror.h"

using std::string;

std::mutex mutex_obj;

TObject::TObject()

{

    DECL_TRACER("TObject::TObject()");

}

TObject::~TObject()

{

    DECL_TRACER("TObject::~TObject()");

    clear();

}

void TObject::clear(bool force)

{

    DECL_TRACER("TObject::clear()");

    OBJECT_t *obj = mObject;

    while (obj)

    {

        OBJECT_t *next = obj->next;

        if (!force)

            dropContent(obj);

        delete obj;

        obj = next;

    }

    mObject = nullptr;

}

void TObject::dropContent(OBJECT_t* obj, bool lock)

{

    DECL_TRACER("TObject::dropContent(OBJECT_t* obj, bool lock)");

    if (lock)

        mutex_obj.lock();

    try

    {

        switch (obj->type)

        {

            case OBJ_TEXT:

            case OBJ_INPUT:

                if (obj->object.plaintext)

                {

                    obj->object.plaintext->close();

                    obj->object.plaintext = nullptr;

                }

                obj->wid = 0;

            break;

            case OBJ_BUTTON:

                if (obj->object.label)

                    obj->object.label = nullptr;

            break;

            // This are the parent widgets (windows) and must be deleted.

            // If this widgets are deleted, Qt deletes their children.

            case OBJ_PAGE:

            case OBJ_SUBPAGE:

                if (obj->object.widget)

                {

                    obj->object.widget->close();        // This deletes all childs and the widget itself

                    obj->object.widget = nullptr;

                }

            break;

            case OBJ_VIDEO:

                if (obj->object.vwidget)

                {

#ifdef QT5_LINUX

                    if (obj->player)

                        delete obj->player;

#endif

                    obj->object.vwidget = nullptr;

                    obj->player = nullptr;

                }

            break;

            case OBJ_LIST:

                if (obj->object.list)

                    obj->object.list = nullptr;

            break;

            default:

                break;

        }

    }

    catch (std::exception& e)

    {

        MSG_ERROR("Error freeing an object: " << e.what());

    }

    if (lock)

        mutex_obj.unlock();

}

TObject::OBJECT_t *TObject::addObject()

{

    DECL_TRACER("TObject::addObject()");

    mutex_obj.lock();

    OBJECT_t *obj = new OBJECT_t;

    obj->next = nullptr;

    obj->object.vwidget = nullptr;

    obj->player = nullptr;

    obj->object.label = nullptr;

    obj->object.plaintext = nullptr;

    obj->object.widget = nullptr;

    obj->object.list = nullptr;

    if (!mObject)

        mObject = obj;

    else

    {

        OBJECT_t *p = mObject;

        while (p->next)

            p = p->next;

        p->next = obj;

    }

    mutex_obj.unlock();

    return obj;

}

TObject::OBJECT_t *TObject::findObject(ulong handle)

{

    DECL_TRACER("TObject::findObject(ulong handle)");

    OBJECT_t *obj = mObject;

    while (obj)

    {

        if (obj->handle == handle)

            return obj;

        obj = obj->next;

    }

    return nullptr;

}

TObject::OBJECT_t * TObject::findObject(WId id)

{

    DECL_TRACER("TObject::findObject(WId id)");

    OBJECT_t *obj = mObject;

    while (obj)

    {

        if (obj->wid == id)

            return obj;

        obj = obj->next;

    }

    return nullptr;

}

TObject::OBJECT_t *TObject::findFirstChild(ulong handle)

{

    DECL_TRACER("TObject::findFirstChild(ulong handle)");

    OBJECT_t *obj = mObject;

    while (obj)

    {

        if (obj->handle != (handle & 0xffff0000) && (obj->handle & 0xffff0000) == (handle & 0xffff0000))

            return obj;

        obj = obj->next;

    }

    return nullptr;

}

TObject::OBJECT_t *TObject::findNextChild(ulong handle)

{

    DECL_TRACER("TObject::findNextChild(ulong handle)");

    OBJECT_t *obj = mObject;

    bool next = false;

    while (obj)

    {

        if (next && (obj->handle & 0xffff0000) == (handle & 0xffff0000))

            return obj;

        if (obj->handle == handle)

            next = true;

        obj = obj->next;

    }

    return nullptr;

}

TObject::OBJECT_t * TObject::getMarkedRemove()

{

    DECL_TRACER("TObject::getMarkedRemove()");

    OBJECT_t *obj = mObject;

    while (obj)

    {

        if (obj->remove)

            return obj;

        obj = obj->next;

    }

    return nullptr;

}

TObject::OBJECT_t * TObject::getNextMarkedRemove(TObject::OBJECT_t* object)

{

    DECL_TRACER("TObject::getNextMarkedRemove(TObject::OBJECT_t* obj)");

    OBJECT_t *obj = nullptr;

    if (!object || !object->next)

        return nullptr;

    obj = object->next;

    while (obj)

    {

        if (obj->remove)

            return obj;

        obj = obj->next;

    }

    return nullptr;

}

TObject::OBJECT_t *TObject::findFirstWindow()

{

    DECL_TRACER("TObject::getFirstWindow()");

    OBJECT_t *obj = mObject;

    while (obj)

    {

        if (obj->type == OBJ_SUBPAGE)

            return obj;

        obj = obj->next;

    }

    return nullptr;

}

TObject::OBJECT_t *TObject::findNextWindow(TObject::OBJECT_t *obj)

{

    DECL_TRACER("TObject::findNextWindow()");

    if (!obj || !obj->next)

        return nullptr;

    OBJECT_t *o = obj->next;

    while (o)

    {

        if (o->type == OBJ_SUBPAGE)

            return o;

        o = o->next;

    }

    return nullptr;

}

void TObject::removeObject(ulong handle, bool drop)

{

    DECL_TRACER("TObject::removeObject(ulong handle, bool drop)");

    if (!handle)

        return;

    mutex_obj.lock();

    OBJECT_t *obj = mObject;

    OBJECT_t *prev = nullptr;

    while (obj)

    {

        if (obj->handle == handle)

        {

            if (!prev)

            {

                mObject = obj->next;

                if (drop)

                    dropContent(obj, false);

                delete obj;

            }

            else

            {

                prev->next = obj->next;

                if (drop)

                    dropContent(obj, false);

                delete obj;

            }

            mutex_obj.unlock();

            return;

        }

        prev = obj;

        obj = obj->next;

    }

    mutex_obj.unlock();

}

void TObject::removeAllChilds(ulong handle, bool drop)

{

    DECL_TRACER("TObject::removeAllChilds(ulong handle, bool drop)");

    if (!handle)

        return;

    mutex_obj.lock();

    OBJECT_t *obj = mObject;

    OBJECT_t *prev = nullptr;

    while (obj)

    {

        if ((obj->handle & 0xffff0000) == (handle & 0xffff0000) && obj->handle != (handle & 0xffff0000))

        {

            if (!prev)

            {

                mObject = obj->next;

                if (drop)

                    dropContent(obj, false);

                delete obj;

                obj = mObject;

                continue;

            }

            else

            {

                prev->next = obj->next;

                if (drop)

                    dropContent(obj, false);

                delete obj;

                obj = prev;

            }

        }

        prev = obj;

        obj = obj->next;

    }

    mutex_obj.unlock();

}

void TObject::cleanMarked()

{

    DECL_TRACER("TObject::cleanMarked()");

    mutex_obj.lock();

    OBJECT_t *obj = mObject;

    OBJECT_t *prev = nullptr;

    while (obj)

    {

        if (obj->remove && (!obj->animation || obj->animation->state() != QAbstractAnimation::Running))

        {

            if (obj->type == OBJ_SUBPAGE && obj->object.widget)

            {

                obj->object.widget->close();

                obj->object.widget = nullptr;

            }

            if (!prev)

            {

                mObject = obj->next;

                delete obj;

                obj = mObject;

                continue;

            }

            else

            {

                prev->next = obj->next;

                delete obj;

                obj = prev;

            }

        }

        prev = obj;

        obj = obj->next;

    }

    mutex_obj.unlock();

}

void TObject::invalidateAllObjects()

{

    DECL_TRACER("TObject::invalidateAllObjects()");

    mutex_obj.lock();

    OBJECT_t *obj = mObject;

    while (obj)

    {

        obj->object.vwidget = nullptr;      // Because it's a union all types will be NULL

        obj->remove = true;

        obj->animation = nullptr;

        obj = obj->next;

    }

    mutex_obj.unlock();

}

void TObject::invalidateAllSubObjects(ulong handle)

{

    DECL_TRACER("::invalidateAllSubObjects(ulong handle)");

    mutex_obj.lock();

    OBJECT_t *obj = mObject;

    while (obj)

    {

        if (obj->handle != handle && (obj->handle & 0xffff0000) == handle)

        {

            obj->object.vwidget = nullptr;  // Because it's a union all types will be NULL

            obj->remove = true;

            obj->animation = nullptr;

        }

        obj = obj->next;

    }

    mutex_obj.unlock();

}

string TObject::objectToString(TObject::OBJECT_TYPE o)

{

    switch(o)

    {

        case OBJ_BUTTON:  return "BUTTON"; break;

        case OBJ_INPUT:   return "INPUT"; break;

        case OBJ_NONE:    return "undefined"; break;

        case OBJ_PAGE:    return "PAGE"; break;

        case OBJ_SUBPAGE: return "SUBPAGE"; break;

        case OBJ_TEXT:    return "TEXT"; break;

        case OBJ_VIDEO:   return "VIDEO"; break;

        case OBJ_LIST:    return "LIST"; break;

    }

    return string();   // Should not happen but is needed to satisfy the compiler.

}